While February ended up warmer than normal, March had a much chillier, snowier start. Chicago was the first to partake in this return of winter. Right as we flipped the calendar, arctic air plunged southward, joining up with a storm system dropping out of the Pacific Northwest and sweeping through the Plains. This storm system produced anywhere from 1 inch of snow over Chicago Metro to Rockford, with up to 2 to 5 inches closer to the Wisconsin border.